2006-11-09 15:04:21 · 5 answers · asked by Julissa M 1 in Science & Mathematics ➔ Weather
The axis of earth is tilted 23.45 degree from the ecliptic; and the orbit of the earth around the sun is not a perfect circle (it is an ellipse, and thus the distance from earth to the sun changes over the course of a year)
2006-11-09 15:07:14 · answer #1 · answered by Vincent G 7 · 1⤊ 0⤋
The main reason is the tilt of the earth's axis which causes the length of day to change during the course of the year. The Earth's orbit is also not a perfect circle, but in fact we are closer to the Sun during winter so you can see that's not a very strong effect.
A second real reason.. its hard to say.. Of course the rotation of the earth itself comes into play! If the Earth didn't rotate one side would be frozen solid and the other a desert. But the rotation also plays a major role in setting up the weather systems.. It leads to the creation of the different bands of air at different latitudes (i.e. the jet stream).
2006-11-10 17:38:23 · answer #2 · answered by Leonardo D 3 · 0⤊ 0⤋
One is because the Earth rotates on its axis at an angle of 23.5 degrees. Second, the Earth orbits around the Sun with spinning on its axis while inclined at 23.5 degrees.
2006-11-10 18:36:57 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Hi. The Earth's tilt and the distance from the Sun.
2006-11-09 23:06:13 · answer #4 · answered by Cirric 7 · 1⤊ 0⤋
so tt life will nt be dull.. =p
2006-11-10 09:10:36 · answer #5 · answered by Anonymous · 0⤊ 1⤋